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無(wú)壓反應(yīng)燒結(jié)MOSi2—SiCp復(fù)相材料的制備與性能
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TF125.2

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國(guó)家自然科學(xué)基金資助項(xiàng)目(59772013)


Preparation of A MoSi2-SiCp Composite by Reactive Sintering Without Pressure
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    摘要:

    采用無(wú)壓反應(yīng)燒結(jié)方法制備了MOSi2-SiCp復(fù)相材料。結(jié)果表明：直接采用元素粉Mo，Si與Si，C粉或SiC粉反應(yīng)，較難制得致密的MOSi2-SiCp復(fù)相材料；而采用MoSi2合金粉同Si，C反應(yīng)可獲得致密的MOSi2-SiCp復(fù)相材料。同時(shí)對(duì)不同SiC含量的MOSi2-SiCp復(fù)相材料的強(qiáng)度和電阻率進(jìn)行了測(cè)定分析，得到強(qiáng)度最高值為157MPa，電阻率隨SiC含量的增加而增加。

    Abstract:

    A MoSi2 SiC p composite was prepared by a reactive sintering without pressure. The results showed that a dense MoSi2 SiC p composite can not be made directly from the molybdenum and silicon powders reacted with carbon powder, but from the alloyed MoSi2 powder reacted with silicon and carbon powders. The strength and electrical resistivity of MoSi2 SiC p composite with various silicon carbide contents were measured and analysed at the same time. The results showed that the highest strength was 157 MPa and the electrical resistivity increased with the increase of SiC content.

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張小立 呂振林 金志浩.無(wú)壓反應(yīng)燒結(jié)MOSi2—SiCp復(fù)相材料的制備與性能[J].稀有金屬材料與工程,2003,(12):1037~1040.[Zhang Xiaoli, Lu Zhenlin, Jin Zhihao. Preparation of A MoSi2-SiCp Composite by Reactive Sintering Without Pressure[J]. Rare Metal Materials and Engineering,2003,(12):1037~1040.]
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  • 最后修改日期:2003-03-24
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